<template>
  <div>
    <home-header></home-header>
    <home-swiper :List="swiperList"></home-swiper>
    <home-icons :list="iconList"></home-icons>
    <home-recommend :List="recommendList"></home-recommend>
    <home-weekend :List="weekendList"></home-weekend>
  </div>
</template>

<script>
import HomeHeader from './components/Header'
import HomeSwiper from './components/Swiper'
import HomeIcons from './components/Icons'
import HomeRecommend from './components/Recommend'
import HomeWeekend from './components/Weekend'
import axios from 'axios'
import { mapState } from 'vuex'
export default {
  name: "Home",
  components:{
    HomeHeader,
    HomeSwiper,
    HomeIcons,
    HomeRecommend,
    HomeWeekend
  },
  data (){
    return{
      lastCity:'',
      swiperList:[],
      iconList:[],
      recommendList:[],
      weekendList:[]
    }
  },
  computed: {
    //映射Vuex里的state里的city到此组件
    ...mapState(['city'])
  },
  methods:{
    //Ajax请求
    getHomeInfo (){
      axios.get('/static/mock/index.json?city=' + this.city)
      .then(this.getHomeInfoSucc)
    },
    //响应请求
    getHomeInfoSucc (res){
      res=res.data
      if(res.ret && res.data) {
        const data=res.data
        this.swiperList=data.swiperList
        this.iconList=data.iconList
        this.recommendList=data.recommendList
        this.weekendList=data.weekendList
      }
    }
  },
  //页面加载时自动执行
  mounted () {
    this.lastCity=this.city
    this.getHomeInfo()
  },
  //用keep-alive的时候要用，可以突破缓存继续自动执行
  activated () {
    if(this.lastCity !== this.city){
      this.lastCity=this.city
      this.getHomeInfo()
    }
  },
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
</style>